TAILIEUCHUNG - Methodology for Integral Water Pollution Assessment within Agricultural Area

River Malewa and River Turasha are the only rivers in the drainage basin. The Malewa River drains off Sattima, its headwaters reaching up to the highest upland valleys. It plunges down the Sattima Escarpment onto the Ol Bolossat plain through a magnificent steep walled gorge, with walls nearly 1,000 feet high, the Malewa ndogo gorge. The river cuts a deep trench across the Ol Bolossat plain passing very close to the south end of the lake and separated from it by a divide of very low relief probably not more than 30 feet. The river turns south and cuts. | Methodology for Integral Water Pollution Assessment within Agricultural Area Jasna Piperski Pavel Benka Atila Bezdan Atila Salvai University of Novi Sad Faculty of Agriculture Serbia Abstract The main economy branch in the Province of Vojvodina is agriculture which has significantly influenced water quality of watercourses as well as groundwater. Both nonpoint and point source of pollution are present in the form of agricultural runoff from arable land and point sources from farm wastewater discharges. Pollution assessment stated by the EU Water Framework Directive requires the application of integral approach. The paper presents a methodology for pollution assessment that includes precise determination of the pollution sources and GIS mapping monitoring and quantification modeling and calculating Total Maximum Daily Load - TMDL values. Water quality model QUAL2K was employed while developed models were used for simulation of possible scenarios. This kind of methodology was applied to the basin of drainage canal KC-III a part of Vrbas s drainage system. Key words water quality GIS modeling QUAL2K Introduction Region of Vojvodina is the most productive agricultural region in the Republic of Serbia and among bigger in Europe. Arable land covers above million ha or 75 of its territory. Land husbandry farming and food processing industries are leading economy branches of the region. However at the same time these are also the most significant polluters of a dense hydrologic network consisting of canals and rivers. Both nonpoint and point source of pollution are present in the form of agricultural runoff from arable land and point sources from farm wastewater discharges. Pollution assessment stated by the EU Water Framework Directive Council Directive 2000 60 EC requires the application of integral approach. Similarly the Clean Water Act implemented by the US Environmental Protection Agency requires calculating TMDL Total Maximum Daily Load value USEPA 1991 1999 . .

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